[Mono-dev] Exception catching in C...

[Robert Jordan]

Thomas Wiest wrote:
> On a related note, in my example project if I throw an exception that 
> isn't handled (on purpose), the program prints the "Unhandled Exception" 
> information but doesn't exit as expected. It just sits there. I've 
> attached the example project. Sorry for the size, I tried to pare it 
> down as much as possible. I also tried rewriting it in a more basic 
> form, but then it didn't seem to have this problem. I've tried this on 
> 1.1.13.8 (sled) and 1.2.2.1 (vmware image).
> 
> Is this a bug, or am I doing something wrong?

The link in your previous mail was about p/invoke, where exceptions
can't be caught, but since you're embedding Mono, there is an easy and
documented way to handle exceptions:

mono_runtime_invoke's last argument is actually a MonoException**:

void call_person_ThrowException(person_class *person)
{
     MonoObject *exception;
     mono_runtime_invoke(person->methods->ThrowException, 
person->object, NULL, &exception);

     if (exception) do_something ();
}

I didn't look why your sample hangs, though.

Robert